Filter



0. E. GIESE June 21 1927..

FILTER Filed July 20. 1926 2 Sheets5hoet 1 r. H a

Q Q Q Q INVENTOR Orro E. 6755:

Br w ack WIT/V588 4 TTORNEYS June 21, 1927. 1,632,960

' O. E.. GIESE FILTER Filed July 20, 1926 2 Sheets-Sheet 2 HUT/88 INVENTOR Orro 5. 6/685 B A'MW 4 TTORNE Y8 Patented June 21, 1927.

PATENT OFFICE.

OTTO E. GIEBE, OI BROOKLYN, NEW YORK.

FILTER.

Application fled July 20, 1826. serial No. 128,687.

M invention relates to filters and more partlcularly to water filters of the ty e commonly referred to as large supply fi ters in which the filtering devices comprise cylin-' ders of filtering material suspended from a tray in a container customarily referred to as a pot, suitable provision being made for passing the water to be filtered through said filtering cylinders and for passing the filtered water out of the apparatus. Impurities retained from the water accumulate upon the nutside of the filtering cylinders and gradually obstruct the free passage of the water through the pores "thereof until the flow of filteredwater is interrupted and practically ceases. At this stage, the efficiency of the 1 filtering device is restored by removing the filtering cylinders and cleaning them in a suitable manner, to remove the accumulated impurities. This operation heretofore has required not only a disassembling of the apparatus, but also a breaking of its connection with the system for distributing the filtered water, which has been diflicult of accomplish ment and re uires considerable time and effort. The 0 ject of the present invention is to provide a novel arrangement whereby the connection between the filter itself and the aforesaid distributing system or its eiuivalent need not be broken to ermit the a oresaid cleaning operation an whereby such disconnection of elements as is required is reduced to a minimum and is accomplished with a minimum of effort. Other more specific objects will appear from the description hereinafter and the features of novelty will be pointed out in the claims.

In the accompanying drawings which illustrate an example of the invention without defining its limits, Fig. 1 is an elevation of the filter; Fig. 2 is a plan view thereof; Fi 3 is a view similar to Fig. 1 looking at rig t angles thereto; Fig. 4 is a horizontal section on the line 4-4 of Fig. 1; Fig. 5 is a vertical section on the line 5-5 of Fig. 3; Fig. 6 is a detail elevation illustrating the tray and the suspended filter cylinders; Fig. 7 is a plan View of the filter pot with the tray removed; Fig. 8 is a corresponding view wit 1 the tray in place, and Fig. 9 is a fragmentary section illustrating the method of mounting the filter cylinders upon the tray.

As shown in the drawings, the filter comprises a container, commonly referred to as a pot, 10 of any conventional form closed at its lower end and provided thereat with a drain at 16 upon the pot 10 and having their free ends screw-threaded for receiving wing nuts 17 whereby the cover 13 is clamped in place upon the tray 12 and the latter is thereby secured in position upon the pot 10. Cylinders 18 of conventional porous filtering material are suspended in predetermined grou s from the tray 12 as shown in Fig. 5, t e cylinders in the illustrated examle being hollow with closed lower ends an open at their upper ends. The communication between the interior of the cylinders 18 and the interior of the tray 12 is established by means of outlet nozzles 19 which may serve also to secure the c linders in connection with the tray 12. or this purpose the upper ends of the cylinders, as shown in Fig. 9, are fitted into metallic caps 20 and secured therein in any conventional manner, said caps 20 being provided with axial apertures through which the nozzles 19 project; the inner ends of the nozzles are provided with flanges 21 which engage the inner surfaces of the caps 20, as also shown in Fig. 9. In the assembled condition of the parts, the nozzles 19, which are externally screwthreaded, project upwardly through the bottom of the tray 12 for the reception of nuts 22 which are screwed upon the projecting ends to fix the filter cylinders 18 in place upon the tray.

For the purpose of maklng a fluid-tight joint,

it is preferred to interposea rubber or other yielding washer 23 between the caps 20 and the bottom of the tray 12, washers 24 being also preferably located between the nuts 22 and said tray. In addition to the parts so far described, the filter is provided with an inlet 25 adapted for connection with a source of unfiltered water and communicating with the interior of the pot 10, a valve or cook 26 being provided in this inlet connection for the purpose of controlling the flow of unfiltered water to the pot. As so far described, the filter may be of any conventional form and construction.

As shown in the drawings, the essential features of the invention comprise a novel form of outlet for the filtered water adapted for connection with a system or its equivalent for distributing the filtered water .and

constructed in a manner to permit the re-' the filter and sai s stem or its equivalent to be broken. For t is u ose, the pot or container 10 is provide with an outwardly projecting fixture 27 having a passage 28 extendingupwardly and terminating in a seat 29. The opposite end of the passage 28 may be screwthreaded for the reception of a control valve or cock 30 'adapted for connection with conduits or the like whereby the filtered water is distributed. The tray 12 is provided with a com lemental fixture 31 adapted to fit against t e seat 29 and having a passage 32 for establishin communication between the passa e 28 of t e fixture 27 and the interior cham er of the tray 12 as illustrated in Fig. 5. A suitable" acking 33 is provided between the oppo portions of the fixtures 27 and. 31 to rovrde a fluidtight connection between t e pes 28 and 32, and similar ackings 34 and 35 may be located between t e tra and the pct 10 and between the tra and e cover 13 to seal the connections at ese ints.

In 0 ration, the un tered water passes throug the inlet 25 into the interior of the pct 10 and thence through the pores of the cylinders .18 to the interior'thereof; as the water passes to the interior of the cylinders 18,. the impurities contained in said water will be retained upon the exterior surfaces of said cylinders. The filtered water asses from the interior of the latter throug the nozzles 19 into the chamber of the tray 12 and thence out of the same through the pas- 32, 28 to the distributing system.

en the efliciency of the filter is reduced because of the accumulation of the im urities upon the filter cylinders 18 and it 1s re qulre to clean the latter, this may easily be accomplished in the following manner:

The wing nuts 17 are loosened and the locking bolts 15 are swung out of the lugs 14, as shown in Fi 7, to release the cover 13 which according y may be removed. The release of the cover 13 alsoreleases the tray 12, which, as. a result, may be lifted from v the pot 10 to thereby lift the cylinders 18 out of said pot and render them accessible for cleaning purposes; this removal of the tray 12 with the cylinders 18 also carries with it the fixture 31, tliis being accomphshed without requirin any disturbance of. the connection between t e outlet 30 and the distributing system. It will be understood that previous to the removal of the parts as 'describedfilthe valve 30 has been shut off to revent tered water in the system from acking out through the passage 28. After the filter cylinders have been properly cleaned, the'tray is replaced in position upon the pct 10 in a manner to restore the connection between the fixtures 31 and 27 and thecommunication between the passages 28 and a 32; the cover 13 is then replaced in position after which the locking bolts 15 are swung into place in the lugs 14 and the thumb nuts 17 are screwed home. The ressure exerted by the thumb nuts 17 upon t 1e lugs 14 forces .the cover 13 against the tray 12 and thereby forces the latter against the pct 10 and, at the same time, clamps the fixture 31 against the fixture 27 to bring about a fluid-tight connection between the-passages 28 and 32. Disassembling of the filter necessary to permit cleaning of the filter cylinders and the restoration of the parts to their 0 erative positions, may thus be accomplishe with a minimum of effort and without re airing the connection between the filter an the distributing system to be disturbed. It will be understood that in some installations, the fixtures 27 and 31 with their passages, may constitute the inlet connection for the'un filtered water which, in such case, would pass out through the connection 25 or its equivalent; the arrangement also ermits the cock 11 to. be used as an outlet or filtered water in connection with suitable filtering material in which case either the connection 25 or the fixtures 27-31 may constitute the inlet for the water. derstood that the improved arrangement may be incorporated in other forms of filter in which the cleaning operation requires a disassemblin of the parts; the manipulation require to disassemble and reassemble the filter needs no skilled operator.

Various changes in the specific forms shown arid described may be made within the scope of the claims without departing from the spirit of my invention.

I claim:

1. A filter of the kind described comprising a container, hollow means for suspending a filtering element in said container, a two-part fixture located respectively upon said container and said hollow means and provided with internal passages adapted to communicate with each other and to establish communication between the interior of said hollow means and the exterior of said filter, and fastening devices whereby said hollow means is removably clamped upon said container and said two-part fixture is clamped together in operative position.

2. A filter comprising a container havin an inlet for unfiltered water, a chambere closure for closing one end of said container, hollow filterin cylinders suspended from said closure and communicating with the interior" thereof, a fixture located. u on said container and having an interior 0 annel, a complemental fixture located upon said closure and having a passage arranged to establish communication-between the interior of devices for detachably securing said cover It will further be unupon said container and for detachably clampin said fixtures in operative connection wit each other.

3. A filter comprising a container closed at the bottom and having its upper end open, an inlet for unfiltered water on said container, a tray normally closing the open end of said container, 0. group 0 hollow filter cylinders suspended from said tray and communicating with the interior thereof, a cover normally closing said tray a fixture forming an integral apart of said container and having a chann pwardl and terminating in a seat, a eomplemental projecting formin an integral part of said tray and 15 adap to fit against said seat, said second fixture having a passage for establishing communication between said channel and the interior of said tray to provide an outlet for the filtered water, and clamping devices 20 whereby said cover is clamped against said tray and said tray is clamped a inst said container and-whereby the two tures are clfiamped in operative engagement with each a. In testimony whereof I have hereunto set in hand.

y OTTO E. GIESE. 

